I Lost My 24 Year Old Son 5 Years Ago

I lost my 24 year old son 5 years ago because his main 3 arteries were 85 to 100% blocked and was not treated for heart disease because of his age. He also had asthma that started at age 17. The coroner's report said he needed open heart surgery in order to save his life but because of his age was never treated for heart problems. Both me and our kids father (my husband) have major family history with heart disease.. Now our youngest daughter, 22 years old, is having similar issues. She developed asthma at the age of 17 (neither parent family histories have asthma issues) and at present has been pucking sick for the past 24 hours for which I believe to be a stomach flu but says she's having a hard time breathing as well and her inhaler isn't helping. Because this sounds too familiar I am concerned. I, personally, think she has the flu and it has made her asthma that much worse. I am worried/concerned because I no longer take these situations mildly. Should I/we be concerned? Thanks for any tips/advice.